Provision to start base::SimpleTestTickClock at initial ticks

components/scheduler/renderer/renderer_scheduler_impl_unittest.cc

Index: components/scheduler/renderer/renderer_scheduler_impl_unittest.cc
diff --git a/components/scheduler/renderer/renderer_scheduler_impl_unittest.cc b/components/scheduler/renderer/renderer_scheduler_impl_unittest.cc
index b860b1986a6bb33a6ab653d31b78526f38d4481b..0345abf3bd135183e213c0bdd16c4fc6f538f9c5 100644
--- a/components/scheduler/renderer/renderer_scheduler_impl_unittest.cc
+++ b/components/scheduler/renderer/renderer_scheduler_impl_unittest.cc
@@ -184,14 +184,14 @@ class RendererSchedulerImplTest : public testing::Test {
  public:
   using Policy = RendererSchedulerImpl::Policy;
 
-  RendererSchedulerImplTest() : clock_(new base::SimpleTestTickClock()) {
-    clock_->Advance(base::TimeDelta::FromMicroseconds(5000));
-  }
+  RendererSchedulerImplTest()
+      : clock_(new base::SimpleTestTickClock(
+            base::TimeTicks() + base::TimeDelta::FromMicroseconds(1))) {}
 
   RendererSchedulerImplTest(base::MessageLoop* message_loop)
-      : clock_(new base::SimpleTestTickClock()), message_loop_(message_loop) {
-    clock_->Advance(base::TimeDelta::FromMicroseconds(5000));
-  }
+      : clock_(new base::SimpleTestTickClock(
+            base::TimeTicks() + base::TimeDelta::FromMicroseconds(1))),
+        message_loop_(message_loop) {}
 
   ~RendererSchedulerImplTest() override {}